Synthesis and crystal structure of oxonitrate complexes Cs[VO{sub 2}(NO{sub 3}){sub 2}], Cs[MoO{sub 2}(NO{sub 3}){sub 3}], and MoO{sub 2}(NO{sub 3}){sub 2}

Cs[VO{sub 2}(NO{sub 3}){sub 2}] (I), MoO{sub 2}(NO{sub 3}){sub 2} (II), and Cs[MoO{sub 2}(NO{sub 3}){sub 3}] (III) complexes have been obtained by crystallization from nitric solutions and studied by single-crystal X-ray diffraction. Complexes I and II contain infinite zigzag chains of similar compo...

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Published inCrystallography reports Vol. 55; no. 3
Main Authors Morozov, I. V., Palamarchuk, D. M., Kozlovsky, V. F., Troyanov, S. I.
Format Journal Article
LanguageEnglish
Published United States 15.05.2010
Subjects
ANIONS
CATIONS
CESIUM COMPOUNDS
CESIUM IONS
CHROMIUM COMPOUNDS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL STRUCTURE
CRYSTALLIZATION
MOLYBDENUM COMPOUNDS
MONOCRYSTALS
NITRATES
OXYGEN COMPOUNDS
PRISMS
SYNTHESIS
VANADIUM COMPOUNDS
X-RAY DIFFRACTION
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Summary:Cs[VO{sub 2}(NO{sub 3}){sub 2}] (I), MoO{sub 2}(NO{sub 3}){sub 2} (II), and Cs[MoO{sub 2}(NO{sub 3}){sub 3}] (III) complexes have been obtained by crystallization from nitric solutions and studied by single-crystal X-ray diffraction. Complexes I and II contain infinite zigzag chains of similar compositions, [VO{sub 2}(NO{sub 3}){sub 2}]{sup -} and [MoO{sub 2}(NO{sub 3}){sub 2}], in which V and Mo atoms form, respectively, trigonal- and pentagonal-bipyramidal polyhedra. Each of these polyhedrons also contains one terminal and two bridge O atoms and two terminal NO{sub 3} groups which are monodentate and bidentate in complexes I and II, respectively. Complex III has an island structure and consists of Cs{sup +} cations and [MoO{sub 2}(NO{sub 3}){sub 3}]{sup -} anions, in which the Mo atom is surrounded by one bidentate NO{sub 3} group and two monodentate NO{sub 3} groups and two terminal O atoms in the cis-positions; oxygen atoms form a polyhedron in the form of distorted octahedron. According to the ab initio calculation of isolated MoO{sub 2}(NO{sub 3}){sub 2} molecules in the gas phase and solution, the coordination environment of the Mo atom, similarly to the Cr(VI) atom in CrO{sub 2}(NO{sub 3}){sub 2}, is formed by two bidentate nitrate groups and two terminal O atoms (polyhedron- twisted trigonal prism).
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774510030053